Powerflex BMW Z3 Rear Shock Absorber/Strut Top Mount Polyurethane Bush Kit 10mm Pin (1994-2002, E36/7 E36/8) - Rear Damper Upper Mount Bushing Upgrade - PFR5-5630-10

Rear Damper Upper Mount Upgrade for BMW Z3 1994 to 2002

Part number: PFR5-5630-10

Diagram reference: 30

Pack contents: 2 bushes

This premium polyurethane rear shock absorber top mount solution is the go-to upgrade for anyone who wants sharper handling, tighter chassis control and long-lasting reliability on a BMW Z3. By reducing unwanted movement at the rear strut upper mount, this performance bush set helps the suspension work precisely, keeps the tyre contact patch planted and delivers a more confident, stable drive on road and track.

We fit these regularly at our Warwickshire workshop and the feedback is consistently positive. Owners report crisper turn-in, improved ride composure and a noticeable reduction in rear-end slop. It is a simple, high-impact suspension upgrade that outlasts rubber and keeps its shape mile after mile.

Fitment and sizing

• Suits cars using a rear shock with a 10 mm shaft pin.
• Does not fit E36 or E46 Cabriolet models.

Typical rear damper shaft diameters for reference:

• Original BMW - 10 mm
• AST - 10 mm
• Bilstein HD, Sport, PSS coilovers - 10 mm
• FK coilovers - 10 mm
• H&R coilovers - 10 mm
• JRZ RS - 12 mm
• Koni Sport - 10 mm
• KW Variant 1, 2, 3 - 10 mm
• ST coilovers - 10 mm
• Tein coilovers - 12 mm

The list above is a guide. If your damper brand is not shown, simply measure the diameter of the rear shock pin to confirm whether you need PFR5-5630-10 or PFR5-5630-12.

Why choose this polyurethane rear shock top mount kit

• Reduces flex at the rear strut upper mount for precise suspension geometry.
• Improves stability under braking and cornering, enhancing driver confidence.
• Helps maintain even tyre wear and consistent road grip.
• Durable, performance-focused bush material that resists sagging and deformation.
• Great value upgrade for fast-road and track-day use.
• Lifetime Warranty for peace of mind.

If your Z3 shows imprecise handling, clunks from the rear, braking instability or uneven tyre wear, tired rubber bushes are often the cause. Upgrading to these performance mounts restores control and delivers a more connected drive.

Also known as

Rear strut top bush, rear damper mount bush, rear shock top mount bushing kit, rear upper mount bushes, polyurethane suspension bush set, Z3 rear shock mount upgrade, performance suspension mounts, chassis bushings for BMW roadster and coupe.

OE cross references

33521092362, 33526779670

Professional fitting

Need installation? Book with MJ Modifications in Warwickshire. We offer professional fitting and alignment checks for a complete suspension upgrade experience. Request a quote at info@mjmodifications.co.uk.